Heat Eric Glass, shown here in Miami’s game against Golden State in Sacramento, called Saturday’s loss to New Orleans ’embarrassing.’ (Photo Tom D’Angelo)

LAS VEGAS – The Miami Heat gave their best player from the Sacramento summer league the day off Saturday and the result showed as much.

Miami fell behind the New Orleans Pelicans by 18 points at the half and things got worse in the second half in a 110-84 loss at the Cox Pavilion on the UNLV campus that coach Eric Glass called “embarrassing.”

Derrick Jones Jr., who averaged 21.3 points in Sacramento, sat – as did guard Derrick Walton Jr. – as coach Glass gave significant time to a group of players who didn’t get on the court much the first three games.

Bam Adebayo, though, logged heavy minutes for the fourth consecutive game and finished with nine points and four rebounds. Adebayo’s turn to rest could come Sunday as the Heat face Charlotte at 2 p.m.

Duncan Robinson led the Heat with 18 points.

The Heat are 2-2 in summer leagues including 2-1 in Sacramento.

Glass not happy: For the first time this week, Glass was angry following the game. The Heat allowed the Pelicans to shoot 58.1 percent (43 of 74) from the floor, 50 percent (11 of 22) on threes. New Orleans had 52 points in the paint. Miami was 8 of 31 (25.8 percent) on threes.

When asked who stood out, Glass said: “Nobody stood out to me tonight. That was an embarrassing performance and it started with the head coach.”

Glass then was asked what bothered him most: “Everything. Lack of energy, lack of effort, lack of intensity, connection on the court. It was an embarrassing game.”

Robinson more than a shooter: As the fourth-most prolific three-point shooter in University of Michigan history, Robinson was known for his perimeter game and has shown that skill during summer league. But Robinson is determined to show he is more than a jump shooter and he’s done a nice job.

Robinson continues to impress, not only with his outside shooting but had several plays at the rim in Sacramento and continued that in the Heat’s Las Vegas opener with two early baskets on drives to the basket. Robinson, who scored 19 points in Miami’s victory over the Lakers in Sacramento, has been the most impressive player among the undrafted rookies and could be putting himself in a good spot for a two-way contract, from someone if not from the Heat.

Robinson, who also had a nice block on a layup attempt by the Pelicans’ Walter Lemon Jr., he was 7-of-10 from the floor and 4-of-6 on threes against New Orleans.

“I felt like I was labeled a lot in college,” Robinson said. “Not to discredit anything I did in college, but I feel like there’s more to my game than just that. It’s a great opportunity to be out here and showcase it. I’m thankful for the opportunity and just trying to continue to grow and hopefully make some noise.”

Getting some playing time: Glass gave heavy minutes to Rashad Vaughn, Matt Farrell, Ike Nwamu and Jarrod Jones on Saturday. Vaughn, who is trying to rehabilitate his career after being the 17th overall pick in 2015, finished with 11 points. Farrell, an undrafted rookie from Notre Dame, finished with six assists but was 4-of-13 from the floor. Nwamu, who play the last two years in Sioux Falls, had seven points.

Jones, who has played the last six seasons in Europe, was the most impressive with 15 points and 12 rebounds. Jones played just eight minutes in Sacramento, sitting two of the three games.

“Every game you might not get to play but the minutes that we get I just personally want to go out there and play hard and prove to all the teams in the league that I can play at this level,” Jones said.